Why does it run roughly at 190 degree engine temp?

Maybe.
If the cooling system is working correctly, the only thing the thermostat does is make the engine reach normal operating temp in a short period of time. The engine is designed to run at 190 - 210 degrees as much as possible.
If you leave the thermostat out, it may run cooler, but you will get a check engine light at some point in time if the engine does not reach 190 degrees within 5 or 10 min. And when the check engine light comes on the performance will drop off. And it will use more fuel.

The range should be in the temp range of your thermostat within in a few degrees, you probably have a 190 degree thermostat. As the outside (ambient) temp rises it's normal for the engine to run a little hotter 200 degrees is safe with coolant, water boils at 212. Your fans should cycle, so it sounds like your temp sensor is faulty. if you haven't flushed your radiator and changed your thermostat lately, now would be a good time to do so. Hope this helps,

Most any engine will go by the installed thermostat. But generally from 190 degrees F, to 215 degrees F.

Firstly if the engine isn't running at it's peak it won't be producing as much heat as usual and secondly an engine rarely runs cooler than usual in average ambient temperatures so it is probable the temperature gauge isn't indicating accurately - this could be a faulty gauge, a faulty instrument voltage regulator, bad connection(s) or bad wiring or a tired sensor. It could possibly mean the sensor bulb isn't in complete intimate contact with the coolant due to a buildup of scale or even combustion gas bubbles from a failing head gasket.

The bike should be running at 180 to 190 degrees. It would be impossible for your bike to be running at 100 degrees. Your body temp is 98.6 degrees. Engines are designed to run at higher temps for better combustion.

190 deg - 215 deg.

Sounds like a stuck thermostat. The thermostat cycles open and closed in order to maintain a temperature range, some cars with very sensitive gauges reflect this opening and closing, but most cars have gauges that are somewhat less responsive in order to keep people from thinking something is wrong. I would defineately replace the thermostat and flush the cooling system, replacing the fluid with fresh.

no your fine, 200F is a fine temprature to run at. If you having no overheating issues just leve it. all my cars run at 190-220F.

YOUR ENGINE OPERATING RATING TEMPERATURE SUPPOSE TO BE 190 TO 200 DEGREES. IF COOLANT SENSOR DEGREES IS SHOWING 190 OR 200 DEGREES IT WORKING.THAT RIGHT.IF ITS SHOWING 60 OR 80 DEGREES IT FAULTY. AND ENGINE WILL RUN POORLY.

sound like coolant temperature sensor is open or not working.scan it to see when engine get operating temperature when coolant temperature get 190 degrees the coolant temp sensor should show 190 degrees if it shows 80 degrees or lower it not working replace it.the coolant sensor control coolant fan.when it gets hot it resistance changes or lower.the pcm grounds it .then cooling fans will run.